Wes Morgan and Andy King goals helped Leicester to victory against Peterborough.
The visitors had enjoyed plenty of possession in the first half but could not make the most of it as they rarely troubled keeper Kasper Schmeichel.
They were made to pay when Morgan powered home a header for his first goal for the Foxes.
Substitute King secured the win when he produced an excellent strike from the edge of the box.
Peterborough's defeat means they have not won away in the league since Boxing Day last year.
Despite their possession, it took Posh 49 minutes to get a shot on goal when Paul Taylor cut inside before hammering a strike which Schmeichel beat away.
Leicester responded almost immediately, with Morgan heading a Ben Marshall corner in off the underside of the crossbar.
The Foxes gained confidence from their opener and Jamie Vardy pulled the ball back for King to run on to and steer in a first-time shot to put them beyond Peterborough's reach.
Leicester manager Nigel Pearson:
"It was a good result, and it was a tougher game than people probably expected. Peterborough pass the ball exeptionally well and I'm sure their game plan was to keep it tight, keep possession and get us frustrated.
"It is good to get off to a winning start because we know the expectation on us is going to be there.
"We all want success here - the owners, players and the fans."
Peterborough manager Darren Ferguson:
"It was a tough opening game for us but there was a lot of positives to come out of it.
"We dominated the first half but did not create enough chances. The key moment was their first goal. It was a blatant foul. The goal gave them impetus and they got on top.
"A lot of positives, but a poor result from our point of view."
Catch up with all the latest highlights from the Championship on the Football League Show
- 01 Schmeichel
- 02 De Laet Booked
- 03 Konchesky
- 05 Morgan
- 22 Moore
- 04 Drinkwater
- 07 Marshall Booked
- 11 Dyer (Knockaert - 66' )
- 16 James (King - 56' )
- 09 Vardy
- 20 Beckford (Nugent - 74' )
- 13 Logan
- 08 Danns
- 10 King
- 24 Knockaert
- 14 Waghorn
- 18 Schlupp
- 35 Nugent
- 01 Olejnik
- 03 Alcock (Little - 80' )
- 04 Brisley
- 05 Zakuani
- 24 Ntlhe
- 06 Bostwick
- 17 Newell (Sinclair - 66' )
- 23 Frecklington Booked (McCann - 76' )
- 08 Tomlin
- 10 Boyd
- 26 Taylor Booked
- 13 Day
- 19 Little
- 07 Swanson
- 11 McCann
- 20 Knight-Percival
- 12 Sinclair
- 22 Clarke-Harris
Live Text Commentary
Full Time The final whistle goes and the game is over.90:00 +2:30
Inswinging corner taken by Grant McCann, Wes Morgan manages to make a clearance.90:00 +1:55
Free kick taken by Grant McCann.90:00 +1:55 Booking
Booking Ritchie De Laet goes into the book.90:00 +1:47
Free kick awarded for a foul by Ritchie De Laet on Lee Tomlin.84:26
Inswinging corner taken from the right by-line by Ben Marshall, Kgosi Ntlhe makes a clearance.83:26
The assistant referee flags for offside against Emile Sinclair. Indirect free kick taken by Kasper Schmeichel.80:28
Corner from right by-line taken by Grant McCann.79:38 Substitution
Substitution Mark Little comes on in place of Craig Alcock.75:59
Emile Sinclair takes a shot. Save by Kasper Schmeichel. Corner taken by Ben Marshall.74:05 Substitution
Substitution Grant McCann joins the action as a substitute, replacing Lee Frecklington.74:05
Assist on the goal came from Jamie Vardy.74:05 Goal scored
Goal! - Andy King - Leicester 2 - 0 Peterboro Andy King scores a goal from inside the penalty box to the top left corner of the goal. Leicester 2-0 Peterborough.72:13
Corner from the left by-line taken by Ben Marshall, save made by Robert Olejnik.72:13 Substitution
Substitution David Nugent is brought on as a substitute for Jermaine Beckford.72:13
Jamie Vardy takes a shot. Save made by Robert Olejnik.71:44
Emile Sinclair produces a right-footed shot from inside the area that goes over the bar.68:19
Corner from the right by-line taken by Ben Marshall, clearance made by Shaun Brisley.67:39
George Boyd challenges Andy King unfairly and gives away a free kick. Direct free kick taken by Ben Marshall.65:20 Substitution
Substitution (Leicester) makes a substitution, with Anthony Knockaert coming on for Lloyd Dyer.
Substitution Joe Newell goes off and Emile Sinclair comes on.62:39 Booking
Booking Booking for Lee Frecklington for unsporting behaviour.57:26
Jamie Vardy fouled by Paul Taylor, the ref awards a free kick. Free kick taken by Ben Marshall.55:25 Substitution
Substitution Matty James leaves the field to be replaced by Andy King.54:47
Free kick awarded for a foul by Ritchie De Laet on Paul Taylor. Free kick taken by Paul Taylor.51:54
The ball is swung over by Ritchie De Laet, Headed effort on goal by Jamie Vardy from inside the penalty box misses to the right of the goal.50:10
Assist on the goal came from Ben Marshall.50:10 Goal scored
Goal! - Wes Morgan - Leicester 1 - 0 Peterboro Wes Morgan fires in a goal from inside the six-yard box to the top right corner of the goal. Leicester 1-0 Peterborough.49:31
Corner taken by Ben Marshall,47:55
Paul Taylor takes a shot. Save by Kasper Schmeichel.47:40
Danny Drinkwater concedes a free kick for a foul on George Boyd. Lee Tomlin takes the direct free kick.46:50
Free kick awarded for an unfair challenge on Ritchie De Laet by Lee Tomlin. Direct free kick taken by Danny Drinkwater.46:06
Unfair challenge on Lee Frecklington by Jermaine Beckford results in a free kick. Robert Olejnik takes the direct free kick.45:23
Lee Frecklington gives away a free kick for an unfair challenge on Lloyd Dyer. Paul Konchesky takes the free kick.45:01
The referee blows his whistle to start the second half.45:00 +2:19 Half time
Half Time The referee blows for half time.45:00 +1:19
The ball is sent over by Lloyd Dyer.44:09
Free kick awarded for a foul by Jermaine Beckford on Craig Alcock. Robert Olejnik restarts play with the free kick.40:54
Ben Marshall takes a inswinging corner.39:59
Corner taken right-footed by Ben Marshall.39:19
Corner taken right-footed by Ben Marshall.37:44
Paul Taylor is flagged offside by the assistant referee. Free kick taken by Kasper Schmeichel. Close range header by Jermaine Beckford goes wide of the left-hand post.36:55
Craig Alcock challenges Paul Konchesky unfairly and gives away a free kick. Direct free kick taken by Paul Konchesky.35:55
The ball is crossed by Jamie Vardy, save by Robert Olejnik.35:10
Lloyd Dyer produces a right-footed shot from outside the penalty box and misses wide left of the target.33:25
The assistant referee signals for offside against Craig Alcock. Indirect free kick taken by Kasper Schmeichel.31:12 Booking
Booking Paul Taylor goes into the book for unsporting behaviour.26:51
Unfair challenge on Ritchie De Laet by Paul Taylor results in a free kick. Kasper Schmeichel restarts play with the free kick.21:49
Robert Olejnik takes the free kick.21:49 Booking
Booking Caution for Ben Marshall.21:33
Ben Marshall challenges Shaun Brisley unfairly and gives away a free kick.18:54
Jamie Vardy is ruled offside. Free kick taken by Robert Olejnik.15:14
Jamie Vardy takes a shot. Save made by Robert Olejnik.10:25
Unfair challenge on Craig Alcock by Lloyd Dyer results in a free kick. Free kick taken by Craig Alcock.9:25
Unfair challenge on George Boyd by Liam Moore results in a free kick. Free kick taken by George Boyd.8:34
Jamie Vardy fouled by Gabriel Zakuani, the ref awards a free kick. Free kick taken by Danny Drinkwater.7:53
Danny Drinkwater concedes a free kick for a foul on Craig Alcock. Direct free kick taken by Craig Alcock.5:54
Craig Alcock concedes a free kick for a foul on Lloyd Dyer. Ben Marshall takes the direct free kick.3:50
Lloyd Dyer fouled by Lee Frecklington, the ref awards a free kick. Direct free kick taken by Jermaine Beckford.2:19
The ball is delivered by Ben Marshall, Robert Olejnik makes a save.0:50
Corner taken by George Boyd, clearance by Lloyd Dyer.0:00
The game begins.
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